This deal has ended.
Update: Back on Sale! At BestBuy.com, you can get several dollars off Nintendo eShop Prepaid Cards plus free shipping. The most off is a $50 Card for $40, followed by a $35 Card for $28 and a $20 for $16. These cards can be used purchase games and videos for the Nintendo Wii U or 3DS from Nintendo's eShop. There is no sales tax on the cards.